Airtac SGC Standard Cylinder SGC250X450SY
The AirTAC Airtac SGC Standard Cylinder SGC250X450SY is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 450mm stroke, G1 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ250 mm
- Stroke450 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X450SY
Delivering massive thrust for heavy industrial tasks, the AirTAC SGC250X450SY is a double-acting ISO 15552 tie-rod cylinder with a 250 mm bore and 450 mm stroke. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. It pushes with 24543 N and pulls with 23562 N at 0.5 MPa, scaling up to 34360 N push at 0.7 MPa. The G1 air port and M42x2.0 rod thread handle the high airflow and mechanical load this class demands.
Because this SKU includes the -S magnet, it directly supports CMSG, DMSG, and EMSG position switches. Note that on this large 250 mm bore, TPU seals are not offered; the front-cover packing and buffer gasket are NBR, with a Viton H high-temperature option available for 0-150 C environments. For real-world sizing, plan for about 14726 N of actual work at 0.5 MPa, which safely lifts roughly 1251 kg vertically with a 2:1 margin. The 60 mm adjustable air cushions at both ends absorb kinetic energy near stroke end.
Airtac SGC Standard Cylinder SGC250X450SY Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X450SY |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 60 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGC Standard Cylinder SGC250X450SY
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGC Standard Cylinder SGC250X450SY Is Used
Heavy Stamping Press
Provides the 24543 N push force at 0.5 MPa needed to actuate large lower dies in automotive stamping lines.
Pallet Lift Gate
Raises loaded shipping platforms, utilizing the 1251 kg safe vertical lift capacity with a 2:1 margin.
Injection Mold Clamp
Secures heavy mold halves using the Y-type knuckle, relying on the rigid four-tie-rod construction under high stress.
Is the Airtac SGC Standard Cylinder SGC250X450SY the Right Cylinder?
Choosing this 250 mm bore makes sense when you need the 24543 N push force at 0.5 MPa, as stepping down to the 200 mm bore drops thrust to 15708 N. Since 250 mm is the largest SGC size, any requirement beyond the 5006 kgf theoretical maximum at 1.0 MPa would require a multi-cylinder setup. This model includes a Y-type rod-end knuckle (note that the 250 mm bore does not support U or F knuckles) and uses the standard ISO 15552 mounting interface, so it drops directly into existing large-bore fixtures.
A plain double-acting cylinder drifts if air pressure drops or the valve is centered, as the air cushions only decelerate the piston near stroke ends rather than locking it; use an external rod lock or pilot-operated check valve for suspended loads. At 450 mm stroke, keep side loads minimized with external guide rails to prevent rod bending and premature seal wear. The -S magnet enables CMSG, DMSG, and EMSG sensors for end-of-stroke confirmation.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGC Standard Cylinder SGC250X450SY FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It generates 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum of 5006 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface for easy integration. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. Note that the 250 mm bore uses NBR buffer gaskets instead of TPU.
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